Crosswords Solver

Answer: diopter
Answer	Crossword Clue
DIOPTER	Ancient astronomy device
DIOPTER	Oculist's unit.
DIOPTER	Eyeglass prescription measurement

DIOPTER	Unit of refractive power of a lens
DIOPTER	Optometrist's unit
diopter	instrument, invented by Hipparchus, to measure the apparent diameter of the sun or moon or to estimate the size or elevation of distant objects
diopter	unit of measure of the refractive power of a lens, having the dimension of the reciprocal of length and a unit equal to the reciprocal of one meter
diopter	a measure of refractive power, also DIOPTRE

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.

Answer: diopter